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Arcteq AQ-F201 Instruction Manual

Overcurrent and earth-fault relay
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AQ-F201
Overcurrent and Earth-fault relay
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Summary of Contents for Arcteq AQ-F201

  • Page 1 AQ-F201 Overcurrent and Earth-fault relay Instruction manual...

  • Page 2: Table Of Contents

    5.1. Functions included in AQ-F201 ........
  • Page 3 7.1. Connections AQ-F201 ........
  • Page 4 Nothing contained in this document shall increase the liability or extend the warranty obligations of the manufacturer Arcteq Relays Ltd. The manufacturer expressly disclaims any and all liability for any damages and/or losses caused due to a failure to comply with the instructions contained herein or caused by persons who do not ful l the aforementioned requirements.
  • Page 5 AQ-F201 Instruction manual Version: 2.01 Copyright Copyright © Arcteq Relays Ltd. 2018. All rights reserved. © Arcteq Relays Ltd...

  • Page 6: Manual Revision Notes

    - Improvements to many drawings and formula images. - Order codes revised. 1.2. Version 1 revision notes Revision 1.00 Date 8.1.2013 Changes -       The rst revision for AQ-F201 Revision 1.01 Date 22.11.2013 -       Order code update, technical data update Changes -       Measurements chapter added -      ...
  • Page 7 Changes -       I> and I0> pick-up ranges updated. Revision 1.10 Date 9.8.2018 -       THD monitoring description added. Changes -       Line thermal overload protection description added. Revision 1.11 Date 18.1.2019 Changes -       HMI display technical data added © Arcteq Relays Ltd...

  • Page 8: Abbreviations

    RMS – Root mean square SF – System failure TMS – Time multiplier setting TRMS – True root mean square VAC – Voltage alternating current VDC – Voltage direct current SW – Software uP - Microprocessor © Arcteq Relays Ltd...

  • Page 9: General

    Version: 2.01 3. General AQ-F201 overcurrent and earth fault relay is a member of the AQ-200 product line. However, while the hardware and the software are modular in the AQ-200 product line, AQ-F201 is provided as a xed overcurrent and earth fault relay with a factory set of I/O and functionality. This manual describes the speci c application of the AQ-F201 overcurrent and earth fault relay.

  • Page 10: Ied User Interface

    The sixteen freely con gurable LEDs are located on the right side of the display. Their activation and color (green or yellow) are based on the settings the user has put in place in the software. © Arcteq Relays Ltd...

  • Page 11: Mimic And Main Menu

    ) takes you to the password menu where you can enter the passwords for the various user levels (User, Operator, Con gurator, and Super-user).  4.2.2. Navigation in the main con guration menus All the settings in this device have been divided into the following six (6) main con guration menus: General Protection Control © Arcteq Relays Ltd...

  • Page 12: General Menu

    Figure. 4.3. - 4. Device info. The Device info tab in the General menu displays the following information: The set name and location of the device. The device's serial number and software version. The hardware con guration (i.e. the order code). © Arcteq Relays Ltd...

  • Page 13: Protection Menu

    For example, the I> (overcurrent) protection stage can be found in the "Current" module, whereas the U< (undervoltage) protection stage can be found in the "Voltage" module. © Arcteq Relays Ltd...
  • Page 14 "Current" module, and selects the I> stage for further inspection. Figure. 4.4. - 7. Accessing the submenu of an individual activated stage. Each protection stage and supporting function has ve sections in their stage submenus: "Info", "Settings",  " Registers", "I/O" and "Events". INFO © Arcteq Relays Ltd...
  • Page 15 Active settings: displays the setting group and its settings (other setting groups can be set in the "Settings" section). While the function is activated and disabled in the Stage selection  submenu, you can disable the function through the "Info" section ("Function mode" at the top of the section). SETTINGS © Arcteq Relays Ltd...
  • Page 16 The stage settings vary depending on which protection function they are a part of. By default only one setting group of the eight available setting groups is activated. You can enable more groups in the Control menu, although they are set here in the "Settings" section. REGISTERS © Arcteq Relays Ltd...
  • Page 17 You can clear the the operation register by choosing "Clear registers" → "Clear". "Stage event log" stores the event registers generated by the stage. These general event registers cannot be cleared. © Arcteq Relays Ltd...
  • Page 18 "Blocking input control" allows you to block stages. The blocking can be done by using any of the following: digital inputs logical inputs or outputs the START, TRIP or BLOCKED information of the stage object status information. EVENTS © Arcteq Relays Ltd...

  • Page 19: Control Menu

    ( Objects) , setting the various control functions ( Control functions)  and controlling the inputs and outputs ( Device I/O) . The available control functions depend on the model of the device in use. Figure. 4.5. - 13. Control menu view. © Arcteq Relays Ltd...
  • Page 20 Force SG change: this setting allows the activation of a setting group at will (please note that Force SG change enable must be "Enabled"). Used setting groups: this setting allows the activation of setting groups SG1...SG8 (only one group is active by default). © Arcteq Relays Ltd...
  • Page 21 Each activated object is visible in the  Objects submenu. By default all objects are disabled unless speci cally activated in the Controls enabled submenu. Each active object has four sections in their submenus: "Settings", "Application control" ("App contr"), "Registers" and "Events". SETTINGS © Arcteq Relays Ltd...
  • Page 22 Clear statistics: statistics can be cleared by choosing "Clear statistics" and then "Clear". An object has Open and Close inputs (connected to physical output relays). A withdrawable object has In and Out inputs. Both "Object Ready" and "Synchrocheck" have status inputs. © Arcteq Relays Ltd...
  • Page 23 Each control function that has been activated is listed in the Control functions submenu (see the middle image above). Every function includes the same sections as the protections stages: "Info", "Settings", "Registers", "I/O" and "Events" (for a more detailed breakdown of their contents, please refer to the "Protection menu" chapter of this document). © Arcteq Relays Ltd...
  • Page 24 LEDs in the Device I/O matrix Figure. 4.5. - 21. Digital inputs section. All settings related to digital inputs can be found in the "Digital inputs" section. © Arcteq Relays Ltd...
  • Page 25 NOTE! An NC signal goes to the default position (NO) if the relay loses the auxiliary voltage or if the system is fully reset. However, an NC signal does not open during voltage or during System full reset. Normally closed output signal does not open during a Communication or Protection reset. © Arcteq Relays Ltd...
  • Page 26 The "LED settings" subsection allows you to modify the individual label text attached to an LED ("LED description settings"); that label is visible in the LED quick displays and the matrices. You can also modify the color of the LED ("LED color settings") between green and yellow; by default all LEDs are green. © Arcteq Relays Ltd...
  • Page 27 These signals can be used in a variety of situations, such as for controlling the logic program, for function blocking, etc. You can name each switch and set the access level to determine who can control the switch. © Arcteq Relays Ltd...

  • Page 28: Communication Menu

    (can be found in the Connections submenu). As a standard, the devices support the following communication protocols: NTP, IEC 61850, Modbus/TCP, Modbus/RTU, IEC 103, IEC 101/104, SPA and Modbus/IO. You can also have other protocols with additional, speacialized communication interface modules. © Arcteq Relays Ltd...
  • Page 29 NOTE! When communicating with a device through a front Ethernet port connection, the IP address is always 192.168.66.9. Protocols Figure. 4.6. - 28. View of the Protocols submenu.  The Protocols submenu offers access to the various communication protocol con guration menus: © Arcteq Relays Ltd...

  • Page 30: Measurement Menu

    Transformers submenu, while the system nominal frequency is speci ed in the Frequency submenu. Other submenus are mainly for monitoring purposes. Transformers Figure. 4.7. - 29. Transformers submenu. © Arcteq Relays Ltd...
  • Page 31 When "Sampling mode" is set to "Tracking", the device uses the measured frequency value as the system nominal frequency. There are three reference measuring points; the order of the reference points can be changed. © Arcteq Relays Ltd...
  • Page 32 (and then set the parameters) for the Energy dose counter mode. "Power measurements" displays all three-phase powers as well as the powers of individual phases. "Energy measurements" displays the three-phase energy as well as the energies of the individual phases. © Arcteq Relays Ltd...

  • Page 33: Monitoring Menu

    ( Disturbance REC ) and accessing the device diagnostics ( Device diagnostics ). The available monitoring functions depend on the type of the device in use. Figure. 4.8. - 33. Monitoring menu view. © Arcteq Relays Ltd...
  • Page 34 Con guring monitor functions is very similar to con guring protection stages. They, too, have the ve sections that display information ("Info"), set the parameters ("Settings"), show the inputs and outputs ("I/O") and present the events and registers ("Events" and "Registers"). © Arcteq Relays Ltd...
  • Page 35 "Recording mode" can be selected to replace the oldest recording ("FIFO") or to keep the old recordings ("FILO"). "Analog channel samples" determines the sample rate of analog channels, and it can be selected to be 8/16/32/62 samples per cycle. © Arcteq Relays Ltd...
  • Page 36 If you see something out of the ordinary in the Device diagnostics submenu and cannot reset it, please contact the closest representative of the manufacturer or the manufacturer of the device itself © Arcteq Relays Ltd...

  • Page 37: Con Guring User Levels And Their Passwords

    Operator: Can view any menus and settings but cannot change any settings BUT can operate breakers and other equipment. Con gurator: Can change most settings such as basic protection pick-up levels or time delays, breaker control functions, signal descriptions etc. and can operate breakers and other equipment. © Arcteq Relays Ltd...
  • Page 38 AQ-F201 Instruction manual Version: 2.01 Super user: Can change any setting and can operate breakers and other equipment. NOTE! Any user level with a password automatically locks itself after half an hour (30 minutes) of inactivity. © Arcteq Relays Ltd...

  • Page 39: Functions

    Instruction manual Version: 2.01 5. Functions 5.1. Functions included in AQ-F201 The AQ-F201 overcurrent and earth fault relay includes the following functions as well as the number of stages for those functions Table. 5.1. - 1. Protection functions of AQ-F201. Name (number ANSI...
  • Page 40 In modern protection devices this scaling calculation is done internally after the current transformer's primary current, secondary current and motor nominal current are set. © Arcteq Relays Ltd...
  • Page 41 - CT secondary: 5 A - I0CT secondary: 1 A - the phase currents are connected to the I01 residual via a Holmgren connection - the starpoint of the phase current CT's secondary current is towards the line © Arcteq Relays Ltd...
  • Page 42 If the protected object's nominal current is chosen to be the basis for the per-unit scaling, the option "Object in p.u." is selected for the "Scale meas to In" setting (see the image below). Figure. 5.2.1. - 41. Setting the phase current transformer scalings to the protected object's nominal current. © Arcteq Relays Ltd...
  • Page 43 The rst of the two images shows how the measurements are displayed when the CT primary values are the basis for the scaling; the second shows them when the protected object's nominal current is the basis for the scaling. © Arcteq Relays Ltd...
  • Page 44 Zero sequence CT scaling (ZCT scaling) is done when a zero sequence CT instead of a ring core CT is part of the measurement connection. In such a case the zero sequence CT should be connected to the I02 channel which has lower CT scaling ranges (see the image below). © Arcteq Relays Ltd...
  • Page 45 The residual I0CT scaling is set according to the zero sequence CT's ratings, in this case 200/1.5 mA (see the image below). Based on these values, the earth fault protection setting (1 × I0n) makes the function pick-up when the primary current is at 200 mA (see the image below). © Arcteq Relays Ltd...
  • Page 46 The measured current amplitude does not match one of the measured phases./ Check the wiring connections between the injection device or the CTs and the relay. The calculated I0 is measured even though it should not. © Arcteq Relays Ltd...
  • Page 47 I2: 0.67 × In / -60.00 deg I0Calc: 0.67 × In / 60.00 deg Solution options: - switch the wires between the connectors 3 and 4 in the CT module - invert the polarity of IL2 ( Measurement → Transformers  →  Phase CT scaling ) © Arcteq Relays Ltd...
  • Page 48 IL3: 1.00 × In / 240.00 deg Sequence currents: I1: 0.00 × In / 0.00 deg I2: 1.00 × In / 0.00 deg I0Calc: 0.00 × In / 0.00 deg Solution: -  switch the wires between the connectors 1 and 3 in the CT module © Arcteq Relays Ltd...
  • Page 49 1…25 Nominal 0.001 100.000 The nominal current of the protected object. This setting is only visible if the option 000.000 current In "Object In p.u." has been selected in the "Scale meas. to In" setting. © Arcteq Relays Ltd...
  • Page 50 A relay feedback value; the calculated scaling factor that is the ratio between the scaling primary current and the secondary current. factor P/S Measurements The following measurements are available in the measured current channels. Table. 5.2.1. - 10. Per-unit phase current measurements. Name Range Step Description © Arcteq Relays Ltd...
  • Page 51 Table. 5.2.1. - 15. Primary residual current measurements. Name Range Step Description Primary residual 0.00…1 000 0.01 The primary fundamental frequency RMS current measurement from the current I0x 000.0 A residual current channel I01 or I02. ("Pri.Res.curr.I0x") © Arcteq Relays Ltd...
  • Page 52 000.0 A sequence current. ("Pri.Neg.seq.curr.") Primary zero sequence 0.00…1 000 0.01 The primary measurement from the calculated zero sequence current 000.0 A current. ("Pri.Zero seq.curr.") Table. 5.2.1. - 20. Secondary sequence current measurements. Name Range Step Description © Arcteq Relays Ltd...

  • Page 53: Frequency Tracking And Scaling

    Measurement sampling can be set to the frequency tracking mode or to the xed user- de ned frequency sampling mode. The bene t of frequency tracking is that the measurements are within a pre-de ned accuracy range even when the fundamental frequency of the power system changes. © Arcteq Relays Ltd...
  • Page 54 This has been achieved by adjusting the sample rate of the measurement channels according to the measured system frequency; this way the FFT calculation always has a whole power cycle in the buffer. The measurement accuracy is further improved by Arcteq's patented calibration algorithms that calibrate the analog channels against eight (8) system frequency points for both magnitude and angle.
  • Page 55 0: Use track 0: Use De nes the start of the sampling. Sampling can begin with Start sampling with frequency track a previously tracked frequency, or with a user-set nominal ("Start smpl with") 1: Use nom frequency frequency. frequency © Arcteq Relays Ltd...

  • Page 56: General Menu

    Enables the Measurement recorder tool. The Measurement recorder 0: Disabled 0: Disabled recorder is con gured in Tools  → Misc → Measurement recorder. 1: Enabled 0: - Mimic recon gure Reload the mimic to the unit. 0: - Recon gure © Arcteq Relays Ltd...

  • Page 57: Protection Functions

    5.4. Protection functions 5.4.1. General properties of a protection function The following flowchart describes the basic structure of any protection function. The basic structure is composed of analog measurement values being compared to the pick-up values and operating time characteristics. © Arcteq Relays Ltd...
  • Page 58 ). The reset ratio of 97 % is built into the function and is always relative to the value. If a function's pick-up characteristics vary from this description, they are de ned in the function section in the manual. Figure. 5.4.1. - 48. Pick up and reset. © Arcteq Relays Ltd...
  • Page 59 There are three basic operating modes available for the function: Instant operation: gives the trip signal with no additional time delay simultaneously with the start signal. © Arcteq Relays Ltd...
  • Page 60 The setting is active and visible when the delay type is selected to IDMT. Delay curve series IEEE Delay curve series for an IDMT operation following either IEC or IEEE/ANSI standard de ned characteristics. © Arcteq Relays Ltd...
  • Page 61 The setting is active and visible when the delay type is selected to IDMT. 0.0000… 0.0001 0.0200 250.0000 Constant C for IEEE characteristics. Figure. 5.4.1. - 51. Inverse operating time formulas for IEC and IEEE standards. © Arcteq Relays Ltd...
  • Page 62 AQ-F201 Instruction manual Version: 2.01 Figure. 5.4.1. - 52. De nite time (DT) operating characteristics. © Arcteq Relays Ltd...
  • Page 63 AQ-F201 Instruction manual Version: 2.01 Figure. 5.4.1. - 53. IEC prede ned characteristics NI, VI, LTI and EI © Arcteq Relays Ltd...
  • Page 64 AQ-F201 Instruction manual Version: 2.01 Figure. 5.4.1. - 54. IEEE/ANSI prede ned characteristics EI, LTI, NI and VI © Arcteq Relays Ltd...
  • Page 65 AQ-F201 Instruction manual Version: 2.01 Figure. 5.4.1. - 55. IEEE prede ned characteristics EI, MI and VI © Arcteq Relays Ltd...
  • Page 66 In addition to the previously mentioned delay characteristics, some functions also have delay characteristics that deviate from the IEC or IEEE standards. These functions are the following:  overcurrent stages residual overcurrent stages directional overcurrent stages directional residual overcurrent stages. © Arcteq Relays Ltd...
  • Page 67 Time calculation characteristics selection. If activated, the operating time during release counter continues until a set release time even if the pick-up element is reset. time The behavior of the stages with different release time con gurations are presented in the gures below. © Arcteq Relays Ltd...
  • Page 68 AQ-F201 Instruction manual Version: 2.01 Figure. 5.4.1. - 57. No delayed pick-up release. Figure. 5.4.1. - 58. Delayed pick-up release, delay counter is reset at signal drop-off. © Arcteq Relays Ltd...
  • Page 69 Figure. 5.4.1. - 60. Delayed pick-up release, delay counter value is decreasing during the release time. The resetting characteristics can be set according to the application. The default setting is delayed 60 ms and the time calculation is held during the release time. © Arcteq Relays Ltd...

  • Page 70: Non-Directional Overcurrent (I>; 50/51)

    The basic design of the protection function is the three-pole operation. The inputs for the function are the following: operating mode selections setting parameters digital inputs and logic signals measured and pre-processed current magnitudes. © Arcteq Relays Ltd...
  • Page 71 The selection of the AI channel currently in use is made with a setting parameter. In all possible input channel variations the pre-fault condition is presented with a 20 ms averaged history value from -20 ms from the START or TRIP event. © Arcteq Relays Ltd...
  • Page 72 If the blocking signal is active when the pick-up element activates, a BLOCKED signal is generated and the function does not process the situation further. If the START function has been activated before the blocking signal, it resets and processes the release time characteristics similarly to when the pick-up signal is reset. © Arcteq Relays Ltd...
  • Page 73 Phase A Trip OFF 1294 NOC1 Phase B Trip ON 1295 NOC1 Phase B Trip OFF 1296 NOC1 Phase C Trip ON 1297 NOC1 Phase C Trip OFF 1344 NOC2 Start ON 1345 NOC2 Start OFF © Arcteq Relays Ltd...
  • Page 74 START, TRIP or BLOCKED. The table below presents the structure of the function's register content. Table. 5.4.2. - 35. Register content. Event Fault Trigger Fault Pre-fault Trip time Date and time Used SG code type current current current remaining © Arcteq Relays Ltd...

  • Page 75: Non-Directional Earth Fault I0> (50N/51N)

    START and TRIP events simultaneously with an equivalent time stamp. The time stamp resolution is 1 ms. The function also provides a resettable cumulative counter for the START, TRIP and BLOCKED events. The following gure presents a simpli ed function block diagram of the non-directional earth fault function. © Arcteq Relays Ltd...
  • Page 76 Activating this parameter permits changing the pick-up level of the 1: Disabled comm bus protection stage via SCADA. 2: Allowed Disabled 1: RMS 2: TRMS Measured magnitude De nes which available measured magnitude is used by the function. 1: RMS 3: Peak-to- peak © Arcteq Relays Ltd...
  • Page 77 The variables the user can set are binary signals from the system. The blocking signal needs to reach the device minimum of 5 ms before the set operating delay has passed in order for the blocking to activate in time. © Arcteq Relays Ltd...
  • Page 78 Trip time Date and time Used SG code type current current current remaining Start Setting dd.mm.yyyy 1664- A-G-R… Trip -20 ms Start -200 ms 0 ms...1800 average group 1...8 hh:mm:ss.mss 1797 Descr. C-G-F averages averages s  current active © Arcteq Relays Ltd...

  • Page 79: Current Unbalance (I2>; 46)

    START and TRIP events simultaneously with an equivalent time stamp. The time stamp resolution is 1 ms. The function also provides a resettable cumulative counter for the START, TRIP and BLOCKED events. The following gure presents a simpli ed function block diagram of the current unbalance function. © Arcteq Relays Ltd...
  • Page 80 Range Step Default De nes whether the ratio between the positive and the negative sequence currents Measured 1: I2pu are supervised or whether only the negative sequence is used in detecting 1: I2pu magnitude 2: I2/I1 unbalance. © Arcteq Relays Ltd...
  • Page 81 Inverse de nite minimum time (IDMT): gives the TRIP signal after a time which is in relation to the set pick-up value i and the measured current  I (dependent time characteristics).  Both IEC and IEEE/ANSI standard characteristics as well as user settable parameters are available for the IDMT operation. © Arcteq Relays Ltd...
  • Page 82 Delay Inverse, Very Inverse and Long Time Inverse characteristics. Param characteristics selection allows the tuning of the constants A and B which then allows setting the characteristics following the same formula as Param the IEC curves mentioned here. © Arcteq Relays Ltd...
  • Page 83 The current unbalance function (abbreviated "CUB" in event block names) generates events and registers from the status changes in START, TRIP, and BLOCKED. The user can select the status ON or OFF for messages in the main event buffer. The function offers one (1) independent stage. © Arcteq Relays Ltd...

  • Page 84: Harmonic Overcurrent (Ih>; 50H/51H/68H)

    The operational logic consists of the following: input magnitude selection input magnitude processing saturation check threshold comparator block signal check time delay characteristics output processing. The basic design of the protection function is the three-pole operation. © Arcteq Relays Ltd...
  • Page 85 RMS values. A -20ms averaged value of the selected magnitude is used for pre-fault data registering. Table. 5.4.5. - 48. Measurement inputs of the Ih> function. Signal Description Time base © Arcteq Relays Ltd...
  • Page 86 The selection of the AI channel, the monitored harmonic, and the monitoring type (per unit or percentage of fundamental frequency) is made with setting parameters. In all possible input channel variations the pre-fault condition is presented with a 20 ms averaged history value from -20 ms from START or TRIP event. © Arcteq Relays Ltd...
  • Page 87 Table. 5.4.5. - 50. Pick-up settings. Name Range Step Default Description Pick-up setting 0.05…2.00 × I 0.01 × I 0.20 × I Ihset pu (per unit monitoring) Pick-up setting Ih/IL 5.00…200.00 % 0.01 % 20.00 % (percentage monitoring) © Arcteq Relays Ltd...
  • Page 88 The function registers its operation into the last twelve (12) time-stamped registers. The register of the function records the ON event process data for START, TRIP or BLOCKED. The table below presents the structure of the function's register content. © Arcteq Relays Ltd...

  • Page 89: Circuit Breaker Failure Protection (Cbfp; 50Bf)

    (2) output signals. The time stamp resolution is 1 ms. The function also provides a resettable cumulative counters for RETRIP, CBFP, CBFP START and BLOCKED events. The following gure presents a simpli ed function block diagram of the circuit breaker failure protection function. © Arcteq Relays Ltd...
  • Page 90 I value. The setting value is common for all measured set  phases. When the I exceeds the I value (in single, dual or all phases) it triggers the pick-up set  operation of the function. © Arcteq Relays Ltd...
  • Page 91 The variables the user can set are binary signals from the system. The blocking signal needs to reach the device minimum of 5 ms before the set operating delay has passed in order for the blocking to activate in time. © Arcteq Relays Ltd...
  • Page 92 CBFP starts the timer. This setting de nes how long the starting condition has to CBFP 0.200 s 1800.000 s last before the CBFP signal is activated. The following gures present some typical cases of the CBFP function. © Arcteq Relays Ltd...
  • Page 93 The CBFP signal is wired normally from its device output contact to the incomer breaker. Below are a few operational cases regarding the various applications. © Arcteq Relays Ltd...
  • Page 94 CBFP is also sent to the incomer breaker. If the primary protection function clears the fault, both counters (Retrip and CBFP) are reset as soon as the measured current is below the threshold settings. © Arcteq Relays Ltd...
  • Page 95 This con guration allows the CBFP to be controlled solely on current-based functions and other function trips can be excluded from the CBFP functionality. © Arcteq Relays Ltd...
  • Page 96 (RETRIP and CBFP) are reset as soon as the measured current is below the threshold settings and the tripping signal is reset. This con guration allows the CBFP to be controlled solely on current-based functions with added security from current monitoring. Other function trips can also be included to the CBFP functionality. © Arcteq Relays Ltd...
  • Page 97 Probably the most common application is when the device's trip output controls the circuit breaker trip coil and a single, dedicated CBFP contact controls the CBFP. Below are a few operational cases regarding the various applications and settings of the CBFP function. © Arcteq Relays Ltd...
  • Page 98 CBFP is sent to the incomer breaker. If the primary protection function clears the fault, the counter for CBFP resets as soon as the measured current is below the threshold settings. © Arcteq Relays Ltd...
  • Page 99 This con guration allows the CBFP to be controlled solely on current-based functions and other function trips can be excluded from the CBFP functionality. © Arcteq Relays Ltd...
  • Page 100 CBFP counter is reset as soon as the measured current is below the threshold settings and the tripping signal is reset. This con guration allows the CBFP to be controlled solely on current-based functions with added security from current monitoring. Other function trips can also be included to the CBFP functionality. © Arcteq Relays Ltd...
  • Page 101 AQ-F201 Instruction manual Version: 2.01 Device is con gured as a dedicated CBFP unit. Figure. 5.4.6. - 75. Device is con gured as a dedicated CBFP unit. © Arcteq Relays Ltd...
  • Page 102 The user can select the status ON or OFF for messages in the main event buffer. The triggering event of the function (RETRIP, CBFP-ACTIVATED or BLOCKED) is recorded with a time stamp and with process data values. © Arcteq Relays Ltd...

  • Page 103: Line Thermal Overload Protection (Tf>; 49F)

    "memory" uses; it is an integral function which tells this function apart from a normal overcurrent function and its operating principle for overload protection applications. The thermal image for the function is calculated according to the equation described below: © Arcteq Relays Ltd...
  • Page 104 100 % inde nitely but never exceeds it. With a single time constant model the cooling of the object follows this same behavior, the reverse of the heating when the current feeding is zero. © Arcteq Relays Ltd...
  • Page 105 The ambient temperature compensation takes into account the set minimum and maximum temperatures and the load capacity of the protected object as well as the measured or set ambient temperature. The calculated coef cient is a linear correction factor, as the following formula shows: © Arcteq Relays Ltd...
  • Page 106 = Ambient temperature reference (can be set in  ̊ C or in  ̊ F , the temperature in which the manufacturer's temperature presumptions apply, the temperature correction factor is 1.0) Figure. 5.4.7. - 78. Ambient temperature coef cient calculation (a three-point linear approximation and a settable correction curve). © Arcteq Relays Ltd...
  • Page 107 The temperature coef cient may be informed in a similar manner to the gure above in a datasheet provided by the manufacturer. Figure. 5.4.7. - 80. Settings of the function's ambient temperature coef cient curve. The temperature and correction factor pairs are set to the function's settable curve. © Arcteq Relays Ltd...
  • Page 108 For example, cable data may be presented as in the gures below (an example from a Prysmian Group cable datasheet) which show the cable's temperature characteristics and voltage ratings (1st image) with different installations and copper or aluminum conductors (2nd and 3rd image). © Arcteq Relays Ltd...
  • Page 109 Equally important to the ampere– temperature values are the presumptive conditions under which the given continuous current-carrying capacity values can be expected to apply. The following gure is an example of these general presumption as presented in a Prysmian Group cable datasheet. © Arcteq Relays Ltd...
  • Page 110 If the installation conditions vary from the presumed conditions manufacturers may give additional information on how to correct the the current-carrying capacity to match the changed conditions. Below is an example of the correction factors provided a manufacturer (Prysmian) for correcting the current-carrying capacity. © Arcteq Relays Ltd...
  • Page 111 AQ-F201 Instruction manual Version: 2.01 Figure. 5.4.7. - 84. Example of correction factors for the current-carrying capacity as given by a manufacturer. © Arcteq Relays Ltd...
  • Page 112 The rest of the settings are in the initial data text above: = 680 A = 90 ̊ C = 15  ̊ C = 15  ̊ C = 1.0. © Arcteq Relays Ltd...
  • Page 113 τ. This uses approximately 71 % of the thermal capacity. According to the datasheet, this current should set the temperature around 65  ̊ C ; therefore, the model overprotects by three degrees. © Arcteq Relays Ltd...
  • Page 114 90  ̊ C . The reference temperature for ground installation is 15  ̊ C . The cable's thermal time constant is 183.8 min. From this initial data one can calculate the k correction factor according to the following formula (k factor related information in italics): © Arcteq Relays Ltd...
  • Page 115 If the k  had not been set, the thermal image would show a temperature of appr. 68  ̊ C instead of the real temperature of 96 ̊ C . © Arcteq Relays Ltd...
  • Page 116 Calculated effective nominal current: × tamb × I SF  fact Where: = calculated effective nominal current  = the service factor  = the ambient temperature factor  = the nominal current of the protected device Calculated end heating: © Arcteq Relays Ltd...
  • Page 117 The operational logic consists of the following: input magnitude processing thermal replica block signal check output processing. The inputs for the function are the following: © Arcteq Relays Ltd...
  • Page 118 The selection of whether the temperature values of the thermal image and RTD 0: C F deg 1: F compensation are shown in Celsius or in Fahrenheit. Table. 5.4.7. - 61. Settings for thermal replica. Name Range Step Default Description © Arcteq Relays Ltd...
  • Page 119 15  ̊ C and for cables in the air it 15 deg is usually 25  ̊ C . =1.0 This setting is visible if "Ambient lin. or curve" is set to "Linear est." © Arcteq Relays Ltd...
  • Page 120 TF> Inhibit 0.0… 0.1 % 80 % INHIBIT activation threshold. level 150.0 % Enable Disabled Enabling/disabling the ALARM 1 signal and the I/O. TF> Trip Disabled Enabled TF> Trip 0.0… 0.1 % 100 % TRIP activation threshold. level 150.0 % © Arcteq Relays Ltd...
  • Page 121 0: SF setting ok TF> 1: Service Indicates if SF setting has been set wrong and the actually used setting is 1.0. Visible only when Setting factor set there is a setting fault. alarm fault. Override to © Arcteq Relays Ltd...
  • Page 122 The number of times the function has activated the Alarm 2 output Restart inhibits The number of times the function has activated the Restart inhibit output Trips The number of times the function has tripped Trips Blocked The number of times the function trips has been blocked © Arcteq Relays Ltd...
  • Page 123 T at a given moment Max. temp. rise allowed degrees Temp. rise at a given moment degrees Hot spot estimate degrees Hot spot maximum allowed degrees Trip delay rem. seconds Used SG Setting group 1...8 active © Arcteq Relays Ltd...

  • Page 124: Control Functions

    For example, if Setting group 2 is selected with a signal and then released, Setting group 1 is not automatically selected as the active setting group; instead, it needs to be speci cally set as such. © Arcteq Relays Ltd...
  • Page 125 The selection of the activated setting groups in the application. If a setting group is setting 0: SG1 enabled, it cannot be controlled to "Active". Newly-enabled setting groups copy their groups SG1...5 values from Setting group 1. SG1...6 SG1...7 SG1...8 © Arcteq Relays Ltd...
  • Page 126 A Petersen coil compensated network usually uses directional sensitive earth fault protection. The user needs to control its characteristics between varmetric and wattmetric; the selection is based on whether the Petersen coil is connected when the network is compensated, or whether it is open when the network is unearthed. © Arcteq Relays Ltd...
  • Page 127 The status of the Petersen coil controls whether Setting group 1 is active. If the coil is disconnected, Setting group 2 is active. This way, if the wire is broken for some reason, the setting group is always controlled by SG2. © Arcteq Relays Ltd...
  • Page 128 With a two wire connection the state of the Petersen coil can be monitored more securely. The additional logic ensures that a single wire loss will not affect the correct setting group selection. © Arcteq Relays Ltd...
  • Page 129 SG3 Disabled 4164 SG4 Enabled 4165 SG4 Disabled 4166 SG5 Enabled 4167 SG5 Disabled 4168 SG6 Enabled 4169 SG6 Disabled 4170 SG7 Enabled 4171 SG7 Disabled 4172 SG8 Enabled 4173 SG8 Disabled 4174 SG1 Request ON © Arcteq Relays Ltd...
  • Page 130 4207 SG3 Active OFF 4208 SG4 Active ON 4209 SG4 Active OFF 4210 SG5 Active ON 4211 SG5 Active OFF 4212 SG6 Active ON 4213 SG6 Active OFF 4214 SG7 Active ON 4215 SG7 Active OFF © Arcteq Relays Ltd...

  • Page 131: Object Control And Monitoring

    1 ms. The function also provides a resettable cumulative counter for OPEN, CLOSE, OPEN FAIL, and CLOSE FAIL events. The following gure presents a simpli ed function block diagram of the object control and monitoring function. © Arcteq Relays Ltd...
  • Page 132 (in and out) are active. If the 2: WDCart In status selected object type is not set to "Withdrawable circuit breaker", this 3: WDBad setting displays the "No in use" option . 4: Not in use © Arcteq Relays Ltd...
  • Page 133 Position indication of digital inputs and ("Objectx Open Status signal protection stage signals can be done by using IEC 61850 signals, GOOSE signals or In") selected logical signals. by the user (SWx) © Arcteq Relays Ltd...
  • Page 134 Determines the maximum length for a Open pulse from the output relay to the 0.02 command 500.00 0.2 s controlled object. If the object operates faster than this set time, the control pulse is pulse reset and a status change is detected. length © Arcteq Relays Ltd...
  • Page 135 The image below presents an example of an interlock application, where the closed earthing switch interlocks the circuit breaker close. © Arcteq Relays Ltd...
  • Page 136 OBJ1 Object Intermediate 2945 OBJ1 Object Open 2946 OBJ1 Object Close 2947 OBJ1 Object Bad 2948 OBJ1 WD Intermediate 2949 OBJ1 WD Out 2950 OBJ1 WD In 2951 OBJ1 WD Bad 2952 OBJ1 Open Request ON © Arcteq Relays Ltd...
  • Page 137 The cause of an "Open" command's failure. Close fail The cause of a "Close" command's failure. Open command The source of an "Open" command. Close command The source of an "Open" command. General status The general status of the function. © Arcteq Relays Ltd...

  • Page 138: Cold Load Pick-Up (Clpu)

    1 ms. The function also provides a resettable cumulative counter for the CLPU ACT and BLOCKED events. The following gure presents a simpli ed function block diagram of the cold load pick-up function. © Arcteq Relays Ltd...
  • Page 139 × In 0.01… 0.01 1.20 × The pick-up setting for high current detection. All measured currents must exceed this 40.00 × high × In setting in order for the cold load pick-up signal to be activated. © Arcteq Relays Ltd...
  • Page 140 Additionally, this parameter operates as the "reclaim" time for the function in case the inrush current is not immediately initiated in the start-up sequence. The six examples below showcase some typical cases with the cold load pick-up function. © Arcteq Relays Ltd...
  • Page 141 I . This is high when the start-up condition is considered to be over. The cold load pick-up signal can be prolonged beyond this time by setting the T to a value higher than 0.000 s. © Arcteq Relays Ltd...
  • Page 142 If the user wants the function to activate within a shorter period of time, the T parameter can be se to a lower value. If the user wants no delay, the T can be zero seconds and the operation will be immediate. © Arcteq Relays Ltd...
  • Page 143 I setting, a high counter starts counting towards the T time. The measured current exceeds the I setting during over the start-up situation and causes the cold load pick-up signal to be released immediately. © Arcteq Relays Ltd...
  • Page 144 When the current exceeds the I setting, a timer high starts counting towards the T time. The measured current stays above the I setting until the high is reached, which causes the release of the cold load pick-up signal. © Arcteq Relays Ltd...
  • Page 145 The current stays between the I setting and the I high setting, so the cold load pick-up signal is active for  T time. As no inrush current is detected during that time, the signal is released. © Arcteq Relays Ltd...
  • Page 146 The triggering event of the function is recorded with a time stamp and with process data values. Table. 5.5.3. - 82. Event codes. Event number Event channel Event block name Event code Description 2688 CLP1 LowStart ON 2689 CLP1 LowStart OFF 2690 CLP1 HighStart ON 2691 CLP1 HighStart OFF © Arcteq Relays Ltd...

  • Page 147: Switch-On-To-Fault (Sotf)

    The outputs of the function are BLOCKED, ACTIVE and TRIP signals. Additionally, the function outputs the corresponding events and registers when any of these mentioned signals activate. The following gure presents a simpli ed function block diagram of the switch-on-to-fault function. © Arcteq Relays Ltd...
  • Page 148 ACTIVATED, TRIP and BLOCKED. The user can select the status ON or OFF for messages in the main event buffer. The triggering event of the function is recorded with a time stamp and with process data values. © Arcteq Relays Ltd...

  • Page 149: Programmable Control Switch

    Switch name Switchx 32 characters long. 0: User 1: Operator Access level for Determines which access level is required to be able to control the Mimic control Con gurator Con gurator programmable control switch via the Mimic. 3: Super user © Arcteq Relays Ltd...

  • Page 150: Monitoring Functions

    The following conditions have to met simultaneously for the function alarm to activate: None of the three-phase currents exceeds the  I  high limit  setting. © Arcteq Relays Ltd...
  • Page 151 The function block uses analog current measurement values, the fundamental frequency magnitude of the current measurement inputs, and the calculated poisitive and negative sequence currents. The user can select what is used for the residual current measurement: nothing, the I01 fundamental frequency, or the I02 fundamental frequency. © Arcteq Relays Ltd...
  • Page 152 Determines the pick-up threshold for phase current measurement. This setting 0.01…  low 0.01 × 0.10 × limit de nes the lower limit for the phase current's pick-up element. 40.00 × limit This condition has to be met for the function to activate. © Arcteq Relays Ltd...
  • Page 153 "General properties of a protection function" and its section "Operating time characteristics for trip and reset". Typical cases of current transformer supervision The following nine examples present some typical cases of the current transformer supervision and their setting effects. © Arcteq Relays Ltd...
  • Page 154 Figure. 5.6.1. - 107. Secondary circuit fault in phase L1 wiring. When a fault is detected and all conditions are met, the CTS timer starts counting. If the situation continues until the set time has passed, the function issues an alarm. © Arcteq Relays Ltd...
  • Page 155 If any of the phases exceed the I high limit setting, the operation of the function is not activated. This behavior is applied to short-circuits and earth faults even when the fault current exceeds the I high limit  setting. © Arcteq Relays Ltd...
  • Page 156 Figure. 5.6.1. - 111. Normal situation, residual current also measured. When the residual condition is added with the "I0 input selection", the sum of the current and the residual current are compared against each other to verify the wiring condition. © Arcteq Relays Ltd...
  • Page 157 Figure. 5.6.1. - 113. Broken primary phase current wiring. In this example, all other condition are met except the residual difference. That is now 0 × I , which indicates a primary side fault. © Arcteq Relays Ltd...
  • Page 158 The register of the function records the ON event process data for ACTIVATED, BLOCKED, etc. The table below presents the structure of the function's register content. Table. 5.6.1. - 94. Register content. Date Event Time to Used Trigger currents Ftype and time code CTSact © Arcteq Relays Ltd...

  • Page 159: Disturbance Recorder (Dr)

     or line-to-line voltage U  (VT card 1) U3(1)VT1 Zero sequence voltage U or synchrocheck voltage U  (VT card 1) U0(ss)VT1 F tracked 1 Tracked frequency of reference 1 F tracked 2 Tracked frequency of reference 2 © Arcteq Relays Ltd...
  • Page 160 Primary calculated I0 Pha.Lx ampl. THD Phase Lx amplitude THD (L1, L2, L3) Sec.calc.I0 Secondary calculated I0 Pha.Lx pow. THD Phase Lx power THD (L1, L2, L3) calc.I0 Calculated I0 Res.I0x ampl. THD Residual I0x amplitude THD (I01, I02) © Arcteq Relays Ltd...
  • Page 161 I0x Residual Reactive Secondary residual reactive current Current Pri. IL2, IL3) Current Sec. I0x (I01, I02) Power, GYB, frequency Lx PF Lx power factor (L1, L2, L3) Curve x Input Input of Curve x (1, 2, 3, 4) © Arcteq Relays Ltd...
  • Page 162 "Always false" is always "0". Always true is PushButton x Always True/False always "1". Forced SG in Stage forcing in use OUTx Output contact statuses SGx Active Setting group 1...8 active GOOSE INx GOOSE input 1...64 © Arcteq Relays Ltd...
  • Page 163 0…100 the device's memory with settings currently in use. The maximum of recordings number of recordings can go up to 100. Max. length 0.000...1800.000 0.001 of a Displays the maximum length of a single recording. recording © Arcteq Relays Ltd...
  • Page 164 However, if the user wishes to con rm this calculation, they can do so with the following formula. Please note that the formula assumes there are no other les in the FTP that share the 64 MB space. © Arcteq Relays Ltd...
  • Page 165 The recorder is con gured by using the AQtivate software or relay HMI, and the results are analyzed with the AQviewer software (is automatically downloaded and installed with AQtivate). Registered users can download the latest tools from the Arcteq website (arcteq.
  • Page 166 Open (see the image below). The recordings are packed COMTRADE les; a -zip le includes *.cfg and *.dat les. AQviewer can open both original packed .zip les and COMTRADE les directly as they are are located in same directory. © Arcteq Relays Ltd...
  • Page 167 You can add up to ve (5) cursors simultaneously. You can remove cursors by clicking on the icon (numbered "2" in the image below). Please note that the "Remove all cursors" text appears when you move the cursor on top of the icon. © Arcteq Relays Ltd...
  • Page 168 4098 Recorder memory cleared 4099 Oldest record cleared 4100 Recorder memory full ON 4101 Recorder memory full OFF 4102 Recording ON 4103 Recording OFF 4104 Storing recording ON 4105 Storing recording OFF 4106 Newest record cleared © Arcteq Relays Ltd...

  • Page 169: Measurement Recorder

    If the recording is done in the relay, only the recording interval needs to be set before recording can be started. AQtivate estimates the maximum recording time, which depends on the recording interval. When the measurement recorder is running, the measurements can be viewed in graph form with the AQtivate PRO software (see the image below). © Arcteq Relays Ltd...
  • Page 170 L2 Exp.React.Ind.E.kvarh Sec.Res.Curr.I01 U2Volt Pri TRMS L2 Imp.React.Ind.E.Mvarh Sec.Res.Curr.I02 U3Volt Pri TRMS L2 Imp.React.Ind.E.kvarh Sec.Calc.I0 U4Volt Pri TRMS L2 Exp/Imp React.Ind.E.bal.Mvarh Pha.Curr.IL1 TRMS Sec Pos.Seq.Volt.Pri L2 Exp/Imp React.Ind.E.bal.kvarh Pha.Curr.IL2 TRMS Sec Neg.Seq.Volt.Pri L3 Exp.Active Energy MWh © Arcteq Relays Ltd...
  • Page 171 TM> Time to 100% T Res.Curr.angle I01 System Volt UL2 mag TM> Reference T curr. Res.Curr.angle I02 System Volt UL2 mag (kV) TM> Active meas curr. Calc.I0.angle System Volt UL3 mag TM> T est.with act. curr. © Arcteq Relays Ltd...
  • Page 172 Pha.Curr.I”L1 TRMS L3 Cos(phi) L3 Diff current Pha.Curr.I”L2 TRMS 3PH Apparent Power (S) L3 Char current Pha.Curr.I”L3 TRMS 3PH Active Power (P) HV I0d> Bias current I” Pos.Seq.Curr. 3PH Reactive Power (Q) HV I0d> Diff current © Arcteq Relays Ltd...

  • Page 173: Circuit Breaker Wear

    However, the circuit breaker wear function is an independent function and it initializes as an independent instance which has its own events and settings not related to the object it is linked to. Figure. 5.6.4. - 118. Example of the circuit breaker interrupting life operations. © Arcteq Relays Ltd...
  • Page 174 Circuit breaker characteristics settings The circuit breaker characteristics are set by two operating points, de ned by the nominal breaking current, the maximum allowed breaking current and their respective operation settings. This data is provided by the circuit breaker's manufacturer. © Arcteq Relays Ltd...
  • Page 175 Let us examine the settings, using a low-duty vacuum circuit breaker (ISM25_LD_1/3) manufactured by Tavrida as an example. The image below presents the technical speci cations provided by the manufacturer, with the data relevant to our settings highlighted in red: © Arcteq Relays Ltd...
  • Page 176 With these settings, Alarm 1 is issued when the cumulative interruption counter for any of the three phases dips below the set 1000 remaining operations ("Alarm 1 Set"). Similarly, when any of the counters dips below 100 remaining operations, Alarm 2 is issued. © Arcteq Relays Ltd...

  • Page 177: Total Harmonic Distortion (Thd)

    The user can also set the alarming limits for each measured channel if the application so requires. The monitoring of the measured signals can be selected to be based either on an amplitude ratio or on the above-mentioned power ratio. The difference is in the calculation formula (as shown below): © Arcteq Relays Ltd...
  • Page 178 The time stamp resolution is 1 ms. The function also provides a resettable cumulative counter for the START, ALARM ACT and BLOCKED events. The following gure presents a simpli ed function block diagram of the total harmonic distortion monitor function. © Arcteq Relays Ltd...
  • Page 179 Step Default Description 0: CT1 De nes which current measurement module the function THD> in side 0: CT1 1: CT2 uses. Measurement De nes which available measured magnitude the function Amplitude magnitude Amplitude uses. 2: Power © Arcteq Relays Ltd...
  • Page 180 The blocking signal can also be tested in the commissioning phase by a software switch signal when the relay's testing mode "Enable stage forcing" is activated ( General → Device ). © Arcteq Relays Ltd...
  • Page 181 THD Alarm Phase OFF 3528 THD1 THD Alarm I01 ON 3529 THD1 THD Alarm I01 OFF 3530 THD1 THD Alarm I02 ON 3531 THD1 THD Alarm I02 OFF 3532 THD1 Blocked ON 3533 THD1 Blocked OFF © Arcteq Relays Ltd...

  • Page 182: Measurement Value Recorder

    , harmonic 11 , harmonic 13 h., 15 h., 17 h., 19 harmonic 15 , harmonic 17 , harmonic 19 harmonic current. The positive sequence current, the negative sequence current and the zero sequence I1, I2, I0Z current. © Arcteq Relays Ltd...
  • Page 183 The motor thermal temperature. F thermal T The feeder thermal temperature. T thermal T The transformer thermal temperature. RTD meas 1…16 The RTD measurement channels 1…16. Ext RTD meas 1…8 The external RTD measurement channels 1…8 (ADAM module). © Arcteq Relays Ltd...
  • Page 184 The user can select the status ON or OFF for messages in the main event buffer. Table. 5.6.6. - 115. Event codes. Event number Event channel Event block name Event code Description 9984 VREC1 Recorder triggered ON 9985 VREC1 Recorder triggered OFF © Arcteq Relays Ltd...

  • Page 185: System Integration

    The device supports both Modbus/TCP and Modbus/RTU communication. Modbus/TCP uses the Ethernet connection to communicate with Modbus/TCP clients. Modbus/RTU is a serial protocol that can be selected for the available serial ports. The following Modbus function types are supported: © Arcteq Relays Ltd...

  • Page 186: Modbus I/O

    Modbus I/O implementation. These are named I/O Module A, I/O Module B and I/O Module C. Each of the modules can be con gured using parameters in the following two tables. © Arcteq Relays Ltd...

  • Page 187: Iec 103

    (slave) station. The IEC 103 protocol can be selected for the serial ports that are available in the device. A primary (master) station can then communicate with the Arcteq device and receive information by polling from the slave device. The transfer of disturbance recordings is not supported.
  • Page 188 4: Var 5 0: Var 1 1: Var 2 2: Var 3 Group 32 variation (AI change) 4: Var 5 Selects the variation of the analog signal change. 3: Var 4 4: Var 5 5: Var 7 © Arcteq Relays Ltd...

  • Page 189: Iec 101/104

    0…65 De nes the common address of the application service data unit (ASDU) ASDU for the IEC 101 communication protocol. Common address of 1…2 De nes the size of the common address of ASDU. ASDU size © Arcteq Relays Ltd...
  • Page 190  The range is the same for all of the scaling coef cients. By default, there is no scaling. No scaling 1/10 1/100 1/1000 1/10 000 1/100 000 1/1 000 000 1000 10 000 100 000 1 000 000 © Arcteq Relays Ltd...

  • Page 191: Spa

    AQtivate ( Tools → SPA map ). The SPA event addresses can be found at  Tools → Events and logs → Event list . NOTE! To access SPA map and event list, an .aqs con guration le should be downloaded from the relay. © Arcteq Relays Ltd...

  • Page 192: Analog Fault Registers

    , harmonic 19 harmonic current. I1, I2, I0Z Positive sequence current, negative sequence current and zero sequence current. I0CalcMag Residual current calculated from phase currents. IL1Ang, IL2Ang, IL3Ang, I01Ang, I02Ang, I0CalcAng Angles of each measured current. I1Ang, I2Ang © Arcteq Relays Ltd...
  • Page 193 M thermal T Motor thermal temperature. F thermal T Feeder thermal temperature. T thermal T Transformer thermal temperature. RTD meas 1…16 RTD measurement channels 1…16. Ext RTD meas 1…8 External RTD measurement channels 1…8 (ADAM module). © Arcteq Relays Ltd...
  • Page 194 ("Available measured values") selected category. Displays the measured value of the selected magnitude of the selected slot. -10 000 000.000…10 000 Magnitude X 0.001 000.000 The unit depends on the selected magnitude (either amperes, volts, or per-unit values). © Arcteq Relays Ltd...

  • Page 195: Connections And Application Examples

    AQ-F201 Instruction manual Version: 2.01 7. Connections and application examples 7.1. Connections AQ-F201 Figure. 7.1. - 122. AQ-F201 hardware. © Arcteq Relays Ltd...

  • Page 196: Application Example And Its Connections

    AQ-F201 Instruction manual Version: 2.01 Figure. 7.1. - 123. AQ-F201 application example with function block diagram. 7.2. Application example and its connections. This chapter presents an application example for the feeder protection IED. As can be seen in the image below, the example application has connected the three phase currents and the residual current (I01).

  • Page 197: Two-Phase, Three-Wire Aron Input Connection

    This chapter presents the two-phase, three-wire ARON input connection for any AQ-200 series IED with a current transformer. The example is for applications with protection CTs for just two phases. The connection is suitable for both motor and feeder applications. © Arcteq Relays Ltd...

  • Page 198: Trip Circuit Supervision (95)

    (52b) even after the circuit breaker is opened. This requires a resistor which reduces the current: this way the coil is not energized and the relay output does not need to cut off the coil's inductive current. © Arcteq Relays Ltd...
  • Page 199 Figure. 7.4. - 127. Settings for a digital input used for trip circuit supervision. Non-latched outputs are seen as hollow circles in the output matrix, whereas latched contacts are painted. See the image below of an output matrix where a non-latched trip contact is used to open the circuit breaker. © Arcteq Relays Ltd...
  • Page 200 There is one main difference between non-latched and latched control in trip circuit supervision: when using the latched control, the trip circuit (in an open state) cannot be monitored as the digital input is shorted by the IED's trip output. © Arcteq Relays Ltd...
  • Page 201 Logical output can be used in the output matrix or in SCADA as the user wants. The image below presents a block scheme when a non-latched trip output is not used. Figure. 7.4. - 130. Example block scheme. © Arcteq Relays Ltd...

  • Page 202: Construction And Installation

    8. Construction and installation 8.1. Construction Even though AQ-F201 is a member of the modular and scalable AQ-200 series, it does not have optional modules. This means that the construction and content of the relay’s hardware are  xed. The relay includes the CPU module (which consists of the CPU, a number of inputs and outputs, and the power supply) as well as one current measurement module.

  • Page 203: Cpu Module

    Output relay 2, with a normally open (NO) contact. X 9:10 Output relay 3, with a normally open (NO) contact. X 11:12 Output relay 4, with a normally open (NO) contact. X 13:14:15 Output relay 5, with a changeover contact. © Arcteq Relays Ltd...
  • Page 204 (T1…Tx), it takes an additional 5 ms round. Therefore, when a digital input controls a digital output internally, it takes 0…15 milliseconds in theory and 2…13 milliseconds in practice. Please note that the mechanical delay of the relay is not included in these approximations. © Arcteq Relays Ltd...

  • Page 205: Current Measurement Module

    64 samples/cycle when the system frequency ranges from 6 Hz to 75 Hz. For further details please refer to the "Current measurement" chapter in the “Technical data” section of this document. © Arcteq Relays Ltd...

  • Page 206: Dimensions And Installation

    (¼) of the rack's width, meaning that a total of four devices can be installed to the same rack next to one another. The gures below describe the device dimensions ( rst gure), the device installation (second), and the panel cutout dimensions and device spacing (third). Figure. 8.4. - 134. Device dimensions. © Arcteq Relays Ltd...
  • Page 207 AQ-F201 Instruction manual Version: 2.01 Figure. 8.4. - 135. Device installation. © Arcteq Relays Ltd...
  • Page 208 AQ-F201 Instruction manual Version: 2.01 Figure. 8.4. - 136. Panel cutout dimensions and device spacing. © Arcteq Relays Ltd...

  • Page 209: Technical Data

     < ±0.5 % < ±0.2° (I> 0.05 A) Angle measurement inaccuracy < ±1.0° (I≤ 0.05 A) Burden (50/60Hz) <0.1 VA Transient overreach <5 % Fine residual current input (I02) Rated current I 0.2 A (con gurable 0.2…10 A) © Arcteq Relays Ltd...

  • Page 210: Frequency Measurement

    Rated auxiliary voltage 85…265 V (AC/DC) < 7 W Power consumption < 15 W Maximum permitted interrupt time < 60 ms with 110 VDC DC ripple < 15 % Terminal block connection Terminal block Phoenix Contact MSTB 2,5/5-ST-5,08 © Arcteq Relays Ltd...

  • Page 211: Cpu Communication Ports

    Features IEC 104 Modbus/TCP Port protocols DNP3 Telnet Data transfer rate 100 MB System integration Can be used for system protocols and for local programming Table. 9.1.2.2. - 141. Rear panel system communication port B. Port © Arcteq Relays Ltd...

  • Page 212: Cpu Digital Inputs

    Breaking capacity, DC (L/R = 40 ms) at 48 VDC at 110 VDC 0.4 A at 220 VDC 0.2 A Control rate 5 ms Settings Polarity Software settable: Normally On/Normally Off Terminal block connection Terminal block Phoenix Contact MSTB 2,5/5-ST-5,08 © Arcteq Relays Ltd...

  • Page 213: Display

    , setting step 0.0001 × I Pick-up current setting 0.10…50.00 %I , setting step 0.01 %I fund fund Inaccuracy: ±0.5 %I  or ±15 mA (0.10…4.0 × I - Current harmonic blocking ±1.0 %-unit of the 2 harmonic setting © Arcteq Relays Ltd...

  • Page 214: Non-Directional Earth Fault (I0>; 50N/51N)

     or ±1.0 mA (0.005…25.0 × I - Starting I02 (0.2 A) - Starting I0Calc (5 A) ±1.0 %I0  or ±15 mA (0.005…4.0 × I Operating time De nite time function operating time setting 0.00…1800.00 s, setting step 0.005 s © Arcteq Relays Ltd...

  • Page 215: Current Unbalance (I2>; 46/46R/46L)

    De nite time function operating time setting 0.00…1800.00 s, setting step 0.005 s Inaccuracy: - De nite time (I ratio > 1.05) ±1.5 % or ±60 ms IDMT operating time setting (ANSI/IEC) 0.02…1800.00 s, setting step 0.001 × parameter © Arcteq Relays Ltd...

  • Page 216: Harmonic Overcurrent (Ih>; 50H/51H, 68)

    C    IDMT constant 0…250.0000, step 0.0001 Inaccuracy: - IDMT operating time ±1.5 % or ±20 ms - IDMT minimum operating time ±20 ms Instant operation time Start time and instant operation time (trip):   ratio >1.05 <50 ms Reset © Arcteq Relays Ltd...

  • Page 217: Circuit Breaker Failure Protection (Cbfp; 50Bf/52Bf)

    9.2.1.6. Line thermal overload protection (TF>; 49F) Table. 9.2.1.6. - 151. Technical data for the line thermal overload protection function. Inputs Current input magnitude Phase TRMS current (up to the 31 harmonic) Settings Time constants τ Time constant value 0.0…500.00 min, step 0.1 min © Arcteq Relays Ltd...

  • Page 218: Control Functions

    0.02…500.00 s, setting step 0.02 s Inaccuracy: - De nite time operating time ±0.5 % or ±10 ms Breaker control operation time External object control time <75 ms Object control during auto-reclosing See the technical sheet for the auto-reclosing function. © Arcteq Relays Ltd...

  • Page 219: Cold Load Pick-Up (Clpu)

    ±1.0 % or ±30 ms SOTF instant release time <40 ms (measured from the trip contact) 9.2.3. Monitoring functions 9.2.3.1. Current transformer supervision Table. 9.2.3.1. - 156. Technical data for the current transformer supervision function. Input signals © Arcteq Relays Ltd...

  • Page 220: Disturbance Recorder

    - Operations with nominal current  0…200 000 operations, setting step 1 operation - Operations with maximum breaking current 0…200 000 operations, setting step 1 operation Pick-up setting for Alarm 1 and Alarm 2 0…200 000 operations, setting step 1 operation Inaccuracy © Arcteq Relays Ltd...

  • Page 221: Total Harmonic Distortion (Thd)

    Power supply input  4 kV, 5/50 ns, 5 kHz EN 60255-26, IEC 61000-4-4 Other inputs and outputs 4 kV, 5/50 ns, 5 kHz Surge: Between wires 2 kV, 1.2/50 µs EN 60255-26, IEC 61000-4-5 Between wire and earth 4 kV, 1.2/50 µs © Arcteq Relays Ltd...
  • Page 222 Table. 9.3. - 164. Environmental conditions. IP classes IP54 (front) Casing protection class IP21 (rear) Temperature ranges Ambient service temperature range –35…+70 °C Transport and storage temperature range –40…+70 °C Other Altitude <2000 m Overvoltage category Pollution degree © Arcteq Relays Ltd...
  • Page 223 Height: 117 mm (4U) Dimensions Width: 127 mm (¼ rack) Depth: 174 mm (no cards & connectors) Weight 1.5 kg With packaging (gross) Height: 170 mm Dimensions Width: 242 mm Depth: 219 mm Weight 2 kg © Arcteq Relays Ltd...

  • Page 224: Ordering Information

    Description Note Manufacturer AQ-ACC-ADAM4016 ADAM-4016 RTD 6 ch RTD module with Modbus Requires external Advanced Co. Ltd. (Pt100/1000, Balco500, Ni) power module AQ-01A Light point sensor unit (8000 Lux threshold) Max. cable length 200m Arcteq Ltd. © Arcteq Relays Ltd...

  • Page 225: Contact And Reference Information

    Wolf ntie 36 F 12 65200 Vaasa, Finland Contacts Phone: +358 10 3221 370 Fax: +358 10 3221 389 URL: url: www.arcteq. email sales: sales@arcteq. Technical support site: https://arcteq. /support-landing/ Technical support: +358 10 3221 388 (EET 8:00 – 16:00) © Arcteq Relays Ltd...

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